CRK

CRK can refer to:

Aviation

 * Bombardier CRJ 1000 (IATA: CRK), a regional jet built in Canada
 * Clark International Airport (IATA: CRK), Pampanga, Philippines
 * Hong Kong Airlines (ICAO: CRK), Hong Kong SAR

Other

 * Český Radioklub, an amateur radio organization in the Czech Republic
 * Chris Reeve Knives, an American knife manufacturer
 * Cookie Run: Kingdom, a South Korean 2021 RPG mobile game
 * CRK (gene)
 * Plains Cree language (ISO-639-3 code)
 * Republican Circle, a Belgian republican association
 * Chattahoochee Riverkeeper, formerly Upper Chattahoochee Riverkeeper, an environmental advocacy organization